What is primary key?
Software Interview Questions
551,385 software interview questions shared by candidates
What would you do in your first week?
Given a constant input stream of integers design a way to, at any point, return the current median of that stream.
How to reverse a String? How to deal with it if the input string is null?
In the next round, the interviewer gave me a binary tree and asked me to write all the data in a file and when the file is read back we should be able to construct the original binary tree.
"Given a log file spanning multiple days, and given a page transition A -> B -> C, find all the unique users who made this page transition in the logs"
Code to check if a Binary tree is symmetrical.
An array consists of elements where each element appears an even number of times. Only 1 element appears odd number of times. Find that number
What methods would you use to retain employees within the company?
Binary tree with parent pointers, given two nodes find common ancestor.
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